p96705831
/
platform_build
forked from openkylin/platform_build
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Merge "Uses a per-partition fingerprint for building images and avb_salt." am: b6145d320c 

Change-Id: I8ca783cb0252a7b4562952835351aeef141913f9
This commit is contained in:
Automerger Merge Worker 2020-03-02 23:27:28 +00:00
parent 098949fe60 b6145d320c
commit 14b4bbc4a2
4 changed files with 102 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/releasetools/add_img_to_target_files.py
View File

@ -338,7 +338,7 @@ def CreateImage(input_dir, info_dict, what, output_file, block_list=None):
# Use repeatable ext4 FS UUID and hash_seed UUID (based on partition name and
# build fingerprint).
build_info = common.BuildInfo(info_dict)
uuid_seed = what + "-" + build_info.fingerprint
uuid_seed = what + "-" + build_info.GetPartitionFingerprint(what)
image_props["uuid"] = str(uuid.uuid5(uuid.NAMESPACE_URL, uuid_seed))
hash_seed = "hash_seed-" + uuid_seed
image_props["hash_seed"] = str(uuid.uuid5(uuid.NAMESPACE_URL, hash_seed))

7
tools/releasetools/build_image.py
View File

@ -540,7 +540,6 @@ def ImagePropFromGlobalDict(glob_dict, mount_point):
"verity_disable",
"avb_enable",
"avb_avbtool",
"avb_salt",
"use_dynamic_partition_size",
)
for p in common_props:
@ -553,6 +552,7 @@ def ImagePropFromGlobalDict(glob_dict, mount_point):
"avb_add_hashtree_footer_args")
copy_prop("avb_system_key_path", "avb_key_path")
copy_prop("avb_system_algorithm", "avb_algorithm")
copy_prop("avb_system_salt", "avb_salt")
copy_prop("fs_type", "fs_type")
# Copy the generic system fs type first, override with specific one if
# available.
@ -584,6 +584,7 @@ def ImagePropFromGlobalDict(glob_dict, mount_point):
"avb_add_hashtree_footer_args")
copy_prop("avb_system_other_key_path", "avb_key_path")
copy_prop("avb_system_other_algorithm", "avb_algorithm")
copy_prop("avb_system_other_salt", "avb_salt")
copy_prop("fs_type", "fs_type")
copy_prop("system_fs_type", "fs_type")
copy_prop("system_other_size", "partition_size")
@ -619,6 +620,7 @@ def ImagePropFromGlobalDict(glob_dict, mount_point):
"avb_add_hashtree_footer_args")
copy_prop("avb_vendor_key_path", "avb_key_path")
copy_prop("avb_vendor_algorithm", "avb_algorithm")
copy_prop("avb_vendor_salt", "avb_salt")
copy_prop("vendor_fs_type", "fs_type")
copy_prop("vendor_size", "partition_size")
if not copy_prop("vendor_journal_size", "journal_size"):
@ -641,6 +643,7 @@ def ImagePropFromGlobalDict(glob_dict, mount_point):
"avb_add_hashtree_footer_args")
copy_prop("avb_product_key_path", "avb_key_path")
copy_prop("avb_product_algorithm", "avb_algorithm")
copy_prop("avb_product_salt", "avb_salt")
copy_prop("product_fs_type", "fs_type")
copy_prop("product_size", "partition_size")
if not copy_prop("product_journal_size", "journal_size"):
@ -663,6 +666,7 @@ def ImagePropFromGlobalDict(glob_dict, mount_point):
"avb_add_hashtree_footer_args")
copy_prop("avb_system_ext_key_path", "avb_key_path")
copy_prop("avb_system_ext_algorithm", "avb_algorithm")
copy_prop("avb_system_ext_salt", "avb_salt")
copy_prop("system_ext_fs_type", "fs_type")
copy_prop("system_ext_size", "partition_size")
if not copy_prop("system_ext_journal_size", "journal_size"):
@ -687,6 +691,7 @@ def ImagePropFromGlobalDict(glob_dict, mount_point):
"avb_add_hashtree_footer_args")
copy_prop("avb_odm_key_path", "avb_key_path")
copy_prop("avb_odm_algorithm", "avb_algorithm")
copy_prop("avb_odm_salt", "avb_salt")
copy_prop("odm_fs_type", "fs_type")
copy_prop("odm_size", "partition_size")
if not copy_prop("odm_journal_size", "journal_size"):

99
tools/releasetools/common.py
View File

@ -319,7 +319,7 @@ class BuildInfo(object):
OEM-specific properties, some of them will be calculated from two info dicts.
Users can query properties similarly as using a dict() (e.g. info['fstab']),
or to query build properties via GetBuildProp() or GetVendorBuildProp().
or to query build properties via GetBuildProp() or GetPartitionBuildProp().
Attributes:
info_dict: The build-time info dict.
@ -362,16 +362,31 @@ class BuildInfo(object):
if self._oem_props:
assert oem_dicts, "OEM source required for this build"
def check_fingerprint(fingerprint):
if (" " in fingerprint or any(ord(ch) > 127 for ch in fingerprint)):
raise ValueError(
'Invalid build fingerprint: "{}". See the requirement in Android CDD '
"3.2.2. Build Parameters.".format(fingerprint))
self._partition_fingerprints = {}
for partition in PARTITIONS_WITH_CARE_MAP:
try:
fingerprint = self.CalculatePartitionFingerprint(partition)
check_fingerprint(fingerprint)
self._partition_fingerprints[partition] = fingerprint
except ExternalError:
continue
if "system" in self._partition_fingerprints:
# system_other is not included in PARTITIONS_WITH_CARE_MAP, but does
# need a fingerprint when creating the image.
self._partition_fingerprints[
"system_other"] = self._partition_fingerprints["system"]
# These two should be computed only after setting self._oem_props.
self._device = self.GetOemProperty("ro.product.device")
self._fingerprint = self.CalculateFingerprint()
# Sanity check the build fingerprint.
if (' ' in self._fingerprint or
any(ord(ch) > 127 for ch in self._fingerprint)):
raise ValueError(
'Invalid build fingerprint: "{}". See the requirement in Android CDD '
'3.2.2. Build Parameters.'.format(self._fingerprint))
check_fingerprint(self._fingerprint)
@property
def is_ab(self):
@ -385,28 +400,6 @@ class BuildInfo(object):
def fingerprint(self):
return self._fingerprint
@property
def vendor_fingerprint(self):
return self._fingerprint_of("vendor")
@property
def product_fingerprint(self):
return self._fingerprint_of("product")
@property
def odm_fingerprint(self):
return self._fingerprint_of("odm")
def _fingerprint_of(self, partition):
if partition + ".build.prop" not in self.info_dict:
return None
build_prop = self.info_dict[partition + ".build.prop"]
if "ro." + partition + ".build.fingerprint" in build_prop:
return build_prop["ro." + partition + ".build.fingerprint"]
if "ro." + partition + ".build.thumbprint" in build_prop:
return build_prop["ro." + partition + ".build.thumbprint"]
return None
@property
def oem_props(self):
return self._oem_props
@ -423,8 +416,22 @@ class BuildInfo(object):
def items(self):
return self.info_dict.items()
def GetPartitionBuildProp(self, prop, partition):
"""Returns the inquired build property for the provided partition."""
# If provided a partition for this property, only look within that
# partition's build.prop.
if prop in BuildInfo._RO_PRODUCT_RESOLVE_PROPS:
prop = prop.replace("ro.product", "ro.product.{}".format(partition))
else:
prop = prop.replace("ro.", "ro.{}.".format(partition))
try:
return self.info_dict.get("{}.build.prop".format(partition), {})[prop]
except KeyError:
raise ExternalError("couldn't find %s in %s.build.prop" %
(prop, partition))
def GetBuildProp(self, prop):
"""Returns the inquired build property."""
"""Returns the inquired build property from the standard build.prop file."""
if prop in BuildInfo._RO_PRODUCT_RESOLVE_PROPS:
return self._ResolveRoProductBuildProp(prop)
@ -462,19 +469,28 @@ class BuildInfo(object):
raise ExternalError("couldn't resolve {}".format(prop))
def GetVendorBuildProp(self, prop):
"""Returns the inquired vendor build property."""
try:
return self.info_dict.get("vendor.build.prop", {})[prop]
except KeyError:
raise ExternalError(
"couldn't find %s in vendor.build.prop" % (prop,))
def GetOemProperty(self, key):
if self.oem_props is not None and key in self.oem_props:
return self.oem_dicts[0][key]
return self.GetBuildProp(key)
def GetPartitionFingerprint(self, partition):
return self._partition_fingerprints.get(partition, None)
def CalculatePartitionFingerprint(self, partition):
try:
return self.GetPartitionBuildProp("ro.build.fingerprint", partition)
except ExternalError:
return "{}/{}/{}:{}/{}/{}:{}/{}".format(
self.GetPartitionBuildProp("ro.product.brand", partition),
self.GetPartitionBuildProp("ro.product.name", partition),
self.GetPartitionBuildProp("ro.product.device", partition),
self.GetPartitionBuildProp("ro.build.version.release", partition),
self.GetPartitionBuildProp("ro.build.id", partition),
self.GetPartitionBuildProp("ro.build.version.incremental", partition),
self.GetPartitionBuildProp("ro.build.type", partition),
self.GetPartitionBuildProp("ro.build.tags", partition))
def CalculateFingerprint(self):
if self.oem_props is None:
try:
@ -644,7 +660,10 @@ def LoadInfoDict(input_file, repacking=False):
# hash / hashtree footers.
if d.get("avb_enable") == "true":
build_info = BuildInfo(d)
d["avb_salt"] = sha256(build_info.fingerprint).hexdigest()
for partition in PARTITIONS_WITH_CARE_MAP:
fingerprint = build_info.GetPartitionFingerprint(partition)
if fingerprint:
d["avb_{}_salt".format(partition)] = sha256(fingerprint).hexdigest()
return d

66
tools/releasetools/test_common.py
View File

@ -53,8 +53,26 @@ class BuildInfoTest(test_utils.ReleaseToolsTestCase):
'ro.build.fingerprint' : 'build-fingerprint',
'ro.build.foo' : 'build-foo',
},
'system.build.prop' : {
'ro.product.system.brand' : 'product-brand',
'ro.product.system.name' : 'product-name',
'ro.product.system.device' : 'product-device',
'ro.system.build.version.release' : 'version-release',
'ro.system.build.id' : 'build-id',
'ro.system.build.version.incremental' : 'version-incremental',
'ro.system.build.type' : 'build-type',
'ro.system.build.tags' : 'build-tags',
'ro.system.build.foo' : 'build-foo',
},
'vendor.build.prop' : {
'ro.vendor.build.fingerprint' : 'vendor-build-fingerprint',
'ro.product.vendor.brand' : 'vendor-product-brand',
'ro.product.vendor.name' : 'vendor-product-name',
'ro.product.vendor.device' : 'vendor-product-device',
'ro.vendor.build.version.release' : 'vendor-version-release',
'ro.vendor.build.id' : 'vendor-build-id',
'ro.vendor.build.version.incremental' : 'vendor-version-incremental',
'ro.vendor.build.type' : 'vendor-build-type',
'ro.vendor.build.tags' : 'vendor-build-tags',
},
'property1' : 'value1',
'property2' : 4096,
@ -186,39 +204,27 @@ class BuildInfoTest(test_utils.ReleaseToolsTestCase):
self.assertRaises(common.ExternalError, target_info.GetBuildProp,
'ro.build.nonexistent')
def test_GetVendorBuildProp(self):
def test_GetPartitionFingerprint(self):
target_info = common.BuildInfo(self.TEST_INFO_DICT, None)
self.assertEqual('vendor-build-fingerprint',
target_info.GetVendorBuildProp(
'ro.vendor.build.fingerprint'))
self.assertRaises(common.ExternalError, target_info.GetVendorBuildProp,
'ro.build.nonexistent')
self.assertEqual(
target_info.GetPartitionFingerprint('vendor'),
'vendor-product-brand/vendor-product-name/vendor-product-device'
':vendor-version-release/vendor-build-id/vendor-version-incremental'
':vendor-build-type/vendor-build-tags')
def test_GetVendorBuildProp_with_oem_props(self):
target_info = common.BuildInfo(self.TEST_INFO_DICT_USES_OEM_PROPS,
self.TEST_OEM_DICTS)
self.assertEqual('vendor-build-fingerprint',
target_info.GetVendorBuildProp(
'ro.vendor.build.fingerprint'))
self.assertRaises(common.ExternalError, target_info.GetVendorBuildProp,
'ro.build.nonexistent')
def test_vendor_fingerprint(self):
def test_GetPartitionFingerprint_system_other_uses_system(self):
target_info = common.BuildInfo(self.TEST_INFO_DICT, None)
self.assertEqual('vendor-build-fingerprint',
target_info.vendor_fingerprint)
self.assertEqual(
target_info.GetPartitionFingerprint('system_other'),
target_info.GetPartitionFingerprint('system'))
def test_vendor_fingerprint_blacklisted(self):
target_info_dict = copy.deepcopy(self.TEST_INFO_DICT_USES_OEM_PROPS)
del target_info_dict['vendor.build.prop']['ro.vendor.build.fingerprint']
target_info = common.BuildInfo(target_info_dict, self.TEST_OEM_DICTS)
self.assertIsNone(target_info.vendor_fingerprint)
def test_vendor_fingerprint_without_vendor_build_prop(self):
target_info_dict = copy.deepcopy(self.TEST_INFO_DICT_USES_OEM_PROPS)
del target_info_dict['vendor.build.prop']
target_info = common.BuildInfo(target_info_dict, self.TEST_OEM_DICTS)
self.assertIsNone(target_info.vendor_fingerprint)
def test_GetPartitionFingerprint_uses_fingerprint_prop_if_available(self):
info_dict = copy.deepcopy(self.TEST_INFO_DICT)
info_dict['vendor.build.prop']['ro.vendor.build.fingerprint'] = 'vendor:fingerprint'
target_info = common.BuildInfo(info_dict, None)
self.assertEqual(
target_info.GetPartitionFingerprint('vendor'),
'vendor:fingerprint')
def test_WriteMountOemScript(self):
target_info = common.BuildInfo(self.TEST_INFO_DICT_USES_OEM_PROPS,